Seasonal changes in Lake Poyang’s water levels

Multi-temporal image, acquired within the Dragon Programme, showing seasonal changes in Lake Poyang’s water levels, based on Envisat's Advanced Synthetic Aperture Radar (ASAR) acquisitions between 29 January and 21 August 2005. Dark blue represents perennial water bodies for the concerned period, bright blue the flooded area during August and red spots the drying up or vegetation growth in wet depressions.